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implot_demo.cpp
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implot_demo.cpp
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// MIT License
// Copyright (c) 2023 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.17
// We define this so that the demo does not accidentally use deprecated API
#ifndef IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#define IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#endif
#include "implot.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#ifdef _MSC_VER
#define sprintf sprintf_s
#endif
#ifndef PI
#define PI 3.14159265358979323846
#endif
#define CHECKBOX_FLAG(flags, flag) ImGui::CheckboxFlags(#flag, (unsigned int*)&flags, flag)
// Encapsulates examples for customizing ImPlot.
namespace MyImPlot {
// Example for Custom Data and Getters section.
struct Vector2f {
Vector2f(float _x, float _y) { x = _x; y = _y; }
float x, y;
};
// Example for Custom Data and Getters section.
struct WaveData {
double X, Amp, Freq, Offset;
WaveData(double x, double amp, double freq, double offset) { X = x; Amp = amp; Freq = freq; Offset = offset; }
};
ImPlotPoint SineWave(int idx, void* wave_data);
ImPlotPoint SawWave(int idx, void* wave_data);
ImPlotPoint Spiral(int idx, void* wave_data);
// Example for Tables section.
void Sparkline(const char* id, const float* values, int count, float min_v, float max_v, int offset, const ImVec4& col, const ImVec2& size);
// Example for Custom Plotters and Tooltips section.
void PlotCandlestick(const char* label_id, const double* xs, const double* opens, const double* closes, const double* lows, const double* highs, int count, bool tooltip = true, float width_percent = 0.25f, ImVec4 bullCol = ImVec4(0,1,0,1), ImVec4 bearCol = ImVec4(1,0,0,1));
// Example for Custom Styles section.
void StyleSeaborn();
} // namespace MyImPlot
namespace ImPlot {
template <typename T>
inline T RandomRange(T min, T max) {
T scale = rand() / (T) RAND_MAX;
return min + scale * ( max - min );
}
ImVec4 RandomColor() {
ImVec4 col;
col.x = RandomRange(0.0f,1.0f);
col.y = RandomRange(0.0f,1.0f);
col.z = RandomRange(0.0f,1.0f);
col.w = 1.0f;
return col;
}
double RandomGauss() {
static double V1, V2, S;
static int phase = 0;
double X;
if(phase == 0) {
do {
double U1 = (double)rand() / RAND_MAX;
double U2 = (double)rand() / RAND_MAX;
V1 = 2 * U1 - 1;
V2 = 2 * U2 - 1;
S = V1 * V1 + V2 * V2;
} while(S >= 1 || S == 0);
X = V1 * sqrt(-2 * log(S) / S);
} else
X = V2 * sqrt(-2 * log(S) / S);
phase = 1 - phase;
return X;
}
template <int N>
struct NormalDistribution {
NormalDistribution(double mean, double sd) {
for (int i = 0; i < N; ++i)
Data[i] = RandomGauss()*sd + mean;
}
double Data[N];
};
// utility structure for realtime plot
struct ScrollingBuffer {
int MaxSize;
int Offset;
ImVector<ImVec2> Data;
ScrollingBuffer(int max_size = 2000) {
MaxSize = max_size;
Offset = 0;
Data.reserve(MaxSize);
}
void AddPoint(float x, float y) {
if (Data.size() < MaxSize)
Data.push_back(ImVec2(x,y));
else {
Data[Offset] = ImVec2(x,y);
Offset = (Offset + 1) % MaxSize;
}
}
void Erase() {
if (Data.size() > 0) {
Data.shrink(0);
Offset = 0;
}
}
};
// utility structure for realtime plot
struct RollingBuffer {
float Span;
ImVector<ImVec2> Data;
RollingBuffer() {
Span = 10.0f;
Data.reserve(2000);
}
void AddPoint(float x, float y) {
float xmod = fmodf(x, Span);
if (!Data.empty() && xmod < Data.back().x)
Data.shrink(0);
Data.push_back(ImVec2(xmod, y));
}
};
// Huge data used by Time Formatting example (~500 MB allocation!)
struct HugeTimeData {
HugeTimeData(double min) {
Ts = new double[Size];
Ys = new double[Size];
for (int i = 0; i < Size; ++i) {
Ts[i] = min + i;
Ys[i] = GetY(Ts[i]);
}
}
~HugeTimeData() { delete[] Ts; delete[] Ys; }
static double GetY(double t) {
return 0.5 + 0.25 * sin(t/86400/12) + 0.005 * sin(t/3600);
}
double* Ts;
double* Ys;
static const int Size = 60*60*24*366;
};
//-----------------------------------------------------------------------------
// [SECTION] Demo Functions
//-----------------------------------------------------------------------------
void Demo_Help() {
ImGui::Text("ABOUT THIS DEMO:");
ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
ImGui::BulletText("The \"Tools\" menu above gives access to: Style Editors (ImPlot/ImGui)\n"
"and Metrics (general purpose Dear ImGui debugging tool).");
ImGui::Separator();
ImGui::Text("PROGRAMMER GUIDE:");
ImGui::BulletText("See the ShowDemoWindow() code in implot_demo.cpp. <- you are here!");
ImGui::BulletText("If you see visual artifacts, do one of the following:");
ImGui::Indent();
ImGui::BulletText("Handle ImGuiBackendFlags_RendererHasVtxOffset for 16-bit indices in your backend.");
ImGui::BulletText("Or, enable 32-bit indices in imconfig.h.");
ImGui::BulletText("Your current configuration is:");
ImGui::Indent();
ImGui::BulletText("ImDrawIdx: %d-bit", (int)(sizeof(ImDrawIdx) * 8));
ImGui::BulletText("ImGuiBackendFlags_RendererHasVtxOffset: %s", (ImGui::GetIO().BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) ? "True" : "False");
ImGui::Unindent();
ImGui::Unindent();
ImGui::Separator();
ImGui::Text("USER GUIDE:");
ShowUserGuide();
}
//-----------------------------------------------------------------------------
void ButtonSelector(const char* label, ImGuiMouseButton* b) {
ImGui::PushID(label);
if (ImGui::RadioButton("LMB",*b == ImGuiMouseButton_Left))
*b = ImGuiMouseButton_Left;
ImGui::SameLine();
if (ImGui::RadioButton("RMB",*b == ImGuiMouseButton_Right))
*b = ImGuiMouseButton_Right;
ImGui::SameLine();
if (ImGui::RadioButton("MMB",*b == ImGuiMouseButton_Middle))
*b = ImGuiMouseButton_Middle;
ImGui::PopID();
}
void ModSelector(const char* label, int* k) {
ImGui::PushID(label);
ImGui::CheckboxFlags("Ctrl", (unsigned int*)k, ImGuiMod_Ctrl); ImGui::SameLine();
ImGui::CheckboxFlags("Shift", (unsigned int*)k, ImGuiMod_Shift); ImGui::SameLine();
ImGui::CheckboxFlags("Alt", (unsigned int*)k, ImGuiMod_Alt); ImGui::SameLine();
ImGui::CheckboxFlags("Super", (unsigned int*)k, ImGuiMod_Super);
ImGui::PopID();
}
void InputMapping(const char* label, ImGuiMouseButton* b, int* k) {
ImGui::LabelText("##","%s",label);
if (b != nullptr) {
ImGui::SameLine(100);
ButtonSelector(label,b);
}
if (k != nullptr) {
ImGui::SameLine(300);
ModSelector(label,k);
}
}
void ShowInputMapping() {
ImPlotInputMap& map = ImPlot::GetInputMap();
InputMapping("Pan",&map.Pan,&map.PanMod);
InputMapping("Fit",&map.Fit,nullptr);
InputMapping("Select",&map.Select,&map.SelectMod);
InputMapping("SelectHorzMod",nullptr,&map.SelectHorzMod);
InputMapping("SelectVertMod",nullptr,&map.SelectVertMod);
InputMapping("SelectCancel",&map.SelectCancel,nullptr);
InputMapping("Menu",&map.Menu,nullptr);
InputMapping("OverrideMod",nullptr,&map.OverrideMod);
InputMapping("ZoomMod",nullptr,&map.ZoomMod);
ImGui::SliderFloat("ZoomRate",&map.ZoomRate,-1,1);
}
void Demo_Config() {
ImGui::ShowFontSelector("Font");
ImGui::ShowStyleSelector("ImGui Style");
ImPlot::ShowStyleSelector("ImPlot Style");
ImPlot::ShowColormapSelector("ImPlot Colormap");
ImPlot::ShowInputMapSelector("Input Map");
ImGui::Separator();
ImGui::Checkbox("Use Local Time", &ImPlot::GetStyle().UseLocalTime);
ImGui::Checkbox("Use ISO 8601", &ImPlot::GetStyle().UseISO8601);
ImGui::Checkbox("Use 24 Hour Clock", &ImPlot::GetStyle().Use24HourClock);
ImGui::Separator();
if (ImPlot::BeginPlot("Preview")) {
static double now = (double)time(nullptr);
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Time);
ImPlot::SetupAxisLimits(ImAxis_X1, now, now + 24*3600);
for (int i = 0; i < 10; ++i) {
double x[2] = {now, now + 24*3600};
double y[2] = {0,i/9.0};
ImGui::PushID(i);
ImPlot::PlotLine("##Line",x,y,2);
ImGui::PopID();
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LinePlots() {
static float xs1[1001], ys1[1001];
for (int i = 0; i < 1001; ++i) {
xs1[i] = i * 0.001f;
ys1[i] = 0.5f + 0.5f * sinf(50 * (xs1[i] + (float)ImGui::GetTime() / 10));
}
static double xs2[20], ys2[20];
for (int i = 0; i < 20; ++i) {
xs2[i] = i * 1/19.0f;
ys2[i] = xs2[i] * xs2[i];
}
if (ImPlot::BeginPlot("Line Plots")) {
ImPlot::SetupAxes("x","y");
ImPlot::PlotLine("f(x)", xs1, ys1, 1001);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotLine("g(x)", xs2, ys2, 20,ImPlotLineFlags_Segments);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_FilledLinePlots() {
static double xs1[101], ys1[101], ys2[101], ys3[101];
srand(0);
for (int i = 0; i < 101; ++i) {
xs1[i] = (float)i;
ys1[i] = RandomRange(400.0,450.0);
ys2[i] = RandomRange(275.0,350.0);
ys3[i] = RandomRange(150.0,225.0);
}
static bool show_lines = true;
static bool show_fills = true;
static float fill_ref = 0;
static int shade_mode = 0;
static ImPlotShadedFlags flags = 0;
ImGui::Checkbox("Lines",&show_lines); ImGui::SameLine();
ImGui::Checkbox("Fills",&show_fills);
if (show_fills) {
ImGui::SameLine();
if (ImGui::RadioButton("To -INF",shade_mode == 0))
shade_mode = 0;
ImGui::SameLine();
if (ImGui::RadioButton("To +INF",shade_mode == 1))
shade_mode = 1;
ImGui::SameLine();
if (ImGui::RadioButton("To Ref",shade_mode == 2))
shade_mode = 2;
if (shade_mode == 2) {
ImGui::SameLine();
ImGui::SetNextItemWidth(100);
ImGui::DragFloat("##Ref",&fill_ref, 1, -100, 500);
}
}
if (ImPlot::BeginPlot("Stock Prices")) {
ImPlot::SetupAxes("Days","Price");
ImPlot::SetupAxesLimits(0,100,0,500);
if (show_fills) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded("Stock 1", xs1, ys1, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PopStyleVar();
}
if (show_lines) {
ImPlot::PlotLine("Stock 1", xs1, ys1, 101);
ImPlot::PlotLine("Stock 2", xs1, ys2, 101);
ImPlot::PlotLine("Stock 3", xs1, ys3, 101);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_ShadedPlots() {
static float xs[1001], ys[1001], ys1[1001], ys2[1001], ys3[1001], ys4[1001];
srand(0);
for (int i = 0; i < 1001; ++i) {
xs[i] = i * 0.001f;
ys[i] = 0.25f + 0.25f * sinf(25 * xs[i]) * sinf(5 * xs[i]) + RandomRange(-0.01f, 0.01f);
ys1[i] = ys[i] + RandomRange(0.1f, 0.12f);
ys2[i] = ys[i] - RandomRange(0.1f, 0.12f);
ys3[i] = 0.75f + 0.2f * sinf(25 * xs[i]);
ys4[i] = 0.75f + 0.1f * cosf(25 * xs[i]);
}
static float alpha = 0.25f;
ImGui::DragFloat("Alpha",&alpha,0.01f,0,1);
if (ImPlot::BeginPlot("Shaded Plots")) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, alpha);
ImPlot::PlotShaded("Uncertain Data",xs,ys1,ys2,1001);
ImPlot::PlotLine("Uncertain Data", xs, ys, 1001);
ImPlot::PlotShaded("Overlapping",xs,ys3,ys4,1001);
ImPlot::PlotLine("Overlapping",xs,ys3,1001);
ImPlot::PlotLine("Overlapping",xs,ys4,1001);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_ScatterPlots() {
srand(0);
static float xs1[100], ys1[100];
for (int i = 0; i < 100; ++i) {
xs1[i] = i * 0.01f;
ys1[i] = xs1[i] + 0.1f * ((float)rand() / (float)RAND_MAX);
}
static float xs2[50], ys2[50];
for (int i = 0; i < 50; i++) {
xs2[i] = 0.25f + 0.2f * ((float)rand() / (float)RAND_MAX);
ys2[i] = 0.75f + 0.2f * ((float)rand() / (float)RAND_MAX);
}
if (ImPlot::BeginPlot("Scatter Plot")) {
ImPlot::PlotScatter("Data 1", xs1, ys1, 100);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square, 6, ImPlot::GetColormapColor(1), IMPLOT_AUTO, ImPlot::GetColormapColor(1));
ImPlot::PlotScatter("Data 2", xs2, ys2, 50);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StairstepPlots() {
static float ys1[21], ys2[21];
for (int i = 0; i < 21; ++i) {
ys1[i] = 0.75f + 0.2f * sinf(10 * i * 0.05f);
ys2[i] = 0.25f + 0.2f * sinf(10 * i * 0.05f);
}
static ImPlotStairsFlags flags = 0;
CHECKBOX_FLAG(flags, ImPlotStairsFlags_Shaded);
if (ImPlot::BeginPlot("Stairstep Plot")) {
ImPlot::SetupAxes("x","f(x)");
ImPlot::SetupAxesLimits(0,1,0,1);
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(0.5f,0.5f,0.5f,1.0f));
ImPlot::PlotLine("##1",ys1,21,0.05f);
ImPlot::PlotLine("##2",ys2,21,0.05f);
ImPlot::PopStyleColor();
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Post Step (default)", ys1, 21, 0.05f, 0, flags);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Pre Step", ys2, 21, 0.05f, 0, flags|ImPlotStairsFlags_PreStep);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarPlots() {
static ImS8 data[10] = {1,2,3,4,5,6,7,8,9,10};
if (ImPlot::BeginPlot("Bar Plot")) {
ImPlot::PlotBars("Vertical",data,10,0.7,1);
ImPlot::PlotBars("Horizontal",data,10,0.4,1,ImPlotBarsFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarGroups() {
static ImS8 data[30] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90, // midterm
80, 62, 56, 99, 55, 78, 88, 78, 90, 100, // final
80, 69, 52, 92, 72, 78, 75, 76, 89, 95}; // course
static const char* ilabels[] = {"Midterm Exam","Final Exam","Course Grade"};
static const char* glabels[] = {"S1","S2","S3","S4","S5","S6","S7","S8","S9","S10"};
static const double positions[] = {0,1,2,3,4,5,6,7,8,9};
static int items = 3;
static int groups = 10;
static float size = 0.67f;
static ImPlotBarGroupsFlags flags = 0;
static bool horz = false;
ImGui::CheckboxFlags("Stacked", (unsigned int*)&flags, ImPlotBarGroupsFlags_Stacked);
ImGui::SameLine();
ImGui::Checkbox("Horizontal",&horz);
ImGui::SliderInt("Items",&items,1,3);
ImGui::SliderFloat("Size",&size,0,1);
if (ImPlot::BeginPlot("Bar Group")) {
ImPlot::SetupLegend(ImPlotLocation_East, ImPlotLegendFlags_Outside);
if (horz) {
ImPlot::SetupAxes("Score","Student",ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_Y1,positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels,data,items,groups,size,0,flags|ImPlotBarGroupsFlags_Horizontal);
}
else {
ImPlot::SetupAxes("Student","Score",ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_X1,positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels,data,items,groups,size,0,flags);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarStacks() {
static ImPlotColormap Liars = -1;
if (Liars == -1) {
static const ImU32 Liars_Data[6] = { 4282515870, 4282609140, 4287357182, 4294630301, 4294945280, 4294921472 };
Liars = ImPlot::AddColormap("Liars", Liars_Data, 6);
}
static bool diverging = true;
ImGui::Checkbox("Diverging",&diverging);
static const char* politicians[] = {"Trump","Bachman","Cruz","Gingrich","Palin","Santorum","Walker","Perry","Ryan","McCain","Rubio","Romney","Rand Paul","Christie","Biden","Kasich","Sanders","J Bush","H Clinton","Obama"};
static int data_reg[] = {18,26,7,14,10,8,6,11,4,4,3,8,6,8,6,5,0,3,1,2, // Pants on Fire
43,36,30,21,30,27,25,17,11,22,15,16,16,17,12,12,14,6,13,12, // False
16,13,28,22,15,21,15,18,30,17,24,18,13,10,14,15,17,22,14,12, // Mostly False
17,10,13,25,12,22,19,26,23,17,22,27,20,26,29,17,18,22,21,27, // Half True
5,7,16,10,10,12,23,13,17,20,22,16,23,19,20,26,36,29,27,26, // Mostly True
1,8,6,8,23,10,12,15,15,20,14,15,22,20,19,25,15,18,24,21}; // True
static const char* labels_reg[] = {"Pants on Fire","False","Mostly False","Half True","Mostly True","True"};
static int data_div[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // Pants on Fire (dummy, to order legend logically)
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // False (dummy, to order legend logically)
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // Mostly False (dummy, to order legend logically)
-16,-13,-28,-22,-15,-21,-15,-18,-30,-17,-24,-18,-13,-10,-14,-15,-17,-22,-14,-12, // Mostly False
-43,-36,-30,-21,-30,-27,-25,-17,-11,-22,-15,-16,-16,-17,-12,-12,-14,-6,-13,-12, // False
-18,-26,-7,-14,-10,-8,-6,-11,-4,-4,-3,-8,-6,-8,-6,-5,0,-3,-1,-2, // Pants on Fire
17,10,13,25,12,22,19,26,23,17,22,27,20,26,29,17,18,22,21,27, // Half True
5,7,16,10,10,12,23,13,17,20,22,16,23,19,20,26,36,29,27,26, // Mostly True
1,8,6,8,23,10,12,15,15,20,14,15,22,20,19,25,15,18,24,21}; // True
static const char* labels_div[] = {"Pants on Fire","False","Mostly False","Mostly False","False","Pants on Fire","Half True","Mostly True","True"};
ImPlot::PushColormap(Liars);
if (ImPlot::BeginPlot("PolitiFact: Who Lies More?",ImVec2(-1,400),ImPlotFlags_NoMouseText)) {
ImPlot::SetupLegend(ImPlotLocation_South, ImPlotLegendFlags_Outside|ImPlotLegendFlags_Horizontal);
ImPlot::SetupAxes(nullptr,nullptr,ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_Invert);
ImPlot::SetupAxisTicks(ImAxis_Y1,0,19,20,politicians,false);
if (diverging)
ImPlot::PlotBarGroups(labels_div,data_div,9,20,0.75,0,ImPlotBarGroupsFlags_Stacked|ImPlotBarGroupsFlags_Horizontal);
else
ImPlot::PlotBarGroups(labels_reg,data_reg,6,20,0.75,0,ImPlotBarGroupsFlags_Stacked|ImPlotBarGroupsFlags_Horizontal);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_ErrorBars() {
static float xs[5] = {1,2,3,4,5};
static float bar[5] = {1,2,5,3,4};
static float lin1[5] = {8,8,9,7,8};
static float lin2[5] = {6,7,6,9,6};
static float err1[5] = {0.2f, 0.4f, 0.2f, 0.6f, 0.4f};
static float err2[5] = {0.4f, 0.2f, 0.4f, 0.8f, 0.6f};
static float err3[5] = {0.09f, 0.14f, 0.09f, 0.12f, 0.16f};
static float err4[5] = {0.02f, 0.08f, 0.15f, 0.05f, 0.2f};
if (ImPlot::BeginPlot("##ErrorBars")) {
ImPlot::SetupAxesLimits(0, 6, 0, 10);
ImPlot::PlotBars("Bar", xs, bar, 5, 0.5f);
ImPlot::PlotErrorBars("Bar", xs, bar, err1, 5);
ImPlot::SetNextErrorBarStyle(ImPlot::GetColormapColor(1), 0);
ImPlot::PlotErrorBars("Line", xs, lin1, err1, err2, 5);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::PlotLine("Line", xs, lin1, 5);
ImPlot::PushStyleColor(ImPlotCol_ErrorBar, ImPlot::GetColormapColor(2));
ImPlot::PlotErrorBars("Scatter", xs, lin2, err2, 5);
ImPlot::PlotErrorBars("Scatter", xs, lin2, err3, err4, 5, ImPlotErrorBarsFlags_Horizontal);
ImPlot::PopStyleColor();
ImPlot::PlotScatter("Scatter", xs, lin2, 5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StemPlots() {
static double xs[51], ys1[51], ys2[51];
for (int i = 0; i < 51; ++i) {
xs[i] = i * 0.02;
ys1[i] = 1.0 + 0.5 * sin(25*xs[i])*cos(2*xs[i]);
ys2[i] = 0.5 + 0.25 * sin(10*xs[i]) * sin(xs[i]);
}
if (ImPlot::BeginPlot("Stem Plots")) {
ImPlot::SetupAxisLimits(ImAxis_X1,0,1.0);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1.6);
ImPlot::PlotStems("Stems 1",xs,ys1,51);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotStems("Stems 2", xs, ys2,51);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_InfiniteLines() {
static double vals[] = {0.25, 0.5, 0.75};
if (ImPlot::BeginPlot("##Infinite")) {
ImPlot::SetupAxes(nullptr,nullptr,ImPlotAxisFlags_NoInitialFit,ImPlotAxisFlags_NoInitialFit);
ImPlot::PlotInfLines("Vertical",vals,3);
ImPlot::PlotInfLines("Horizontal",vals,3,ImPlotInfLinesFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_PieCharts() {
static const char* labels1[] = {"Frogs","Hogs","Dogs","Logs"};
static float data1[] = {0.15f, 0.30f, 0.2f, 0.05f};
static ImPlotPieChartFlags flags = 0;
ImGui::SetNextItemWidth(250);
ImGui::DragFloat4("Values", data1, 0.01f, 0, 1);
CHECKBOX_FLAG(flags, ImPlotPieChartFlags_Normalize);
CHECKBOX_FLAG(flags, ImPlotPieChartFlags_IgnoreHidden);
if (ImPlot::BeginPlot("##Pie1", ImVec2(250,250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(nullptr, nullptr, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels1, data1, 4, 0.5, 0.5, 0.4, "%.2f", 90, flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
static const char* labels2[] = {"A","B","C","D","E"};
static int data2[] = {1,1,2,3,5};
ImPlot::PushColormap(ImPlotColormap_Pastel);
if (ImPlot::BeginPlot("##Pie2", ImVec2(250,250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(nullptr, nullptr, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels2, data2, 5, 0.5, 0.5, 0.4, "%.0f", 180, flags);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_Heatmaps() {
static float values1[7][7] = {{0.8f, 2.4f, 2.5f, 3.9f, 0.0f, 4.0f, 0.0f},
{2.4f, 0.0f, 4.0f, 1.0f, 2.7f, 0.0f, 0.0f},
{1.1f, 2.4f, 0.8f, 4.3f, 1.9f, 4.4f, 0.0f},
{0.6f, 0.0f, 0.3f, 0.0f, 3.1f, 0.0f, 0.0f},
{0.7f, 1.7f, 0.6f, 2.6f, 2.2f, 6.2f, 0.0f},
{1.3f, 1.2f, 0.0f, 0.0f, 0.0f, 3.2f, 5.1f},
{0.1f, 2.0f, 0.0f, 1.4f, 0.0f, 1.9f, 6.3f}};
static float scale_min = 0;
static float scale_max = 6.3f;
static const char* xlabels[] = {"C1","C2","C3","C4","C5","C6","C7"};
static const char* ylabels[] = {"R1","R2","R3","R4","R5","R6","R7"};
static ImPlotColormap map = ImPlotColormap_Viridis;
if (ImPlot::ColormapButton(ImPlot::GetColormapName(map),ImVec2(225,0),map)) {
map = (map + 1) % ImPlot::GetColormapCount();
// We bust the color cache of our plots so that item colors will
// resample the new colormap in the event that they have already
// been created. See documentation in implot.h.
BustColorCache("##Heatmap1");
BustColorCache("##Heatmap2");
}
ImGui::SameLine();
ImGui::LabelText("##Colormap Index", "%s", "Change Colormap");
ImGui::SetNextItemWidth(225);
ImGui::DragFloatRange2("Min / Max",&scale_min, &scale_max, 0.01f, -20, 20);
static ImPlotHeatmapFlags hm_flags = 0;
ImGui::CheckboxFlags("Column Major", (unsigned int*)&hm_flags, ImPlotHeatmapFlags_ColMajor);
static ImPlotAxisFlags axes_flags = ImPlotAxisFlags_Lock | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoTickMarks;
ImPlot::PushColormap(map);
if (ImPlot::BeginPlot("##Heatmap1",ImVec2(225,225),ImPlotFlags_NoLegend|ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(nullptr, nullptr, axes_flags, axes_flags);
ImPlot::SetupAxisTicks(ImAxis_X1,0 + 1.0/14.0, 1 - 1.0/14.0, 7, xlabels);
ImPlot::SetupAxisTicks(ImAxis_Y1,1 - 1.0/14.0, 0 + 1.0/14.0, 7, ylabels);
ImPlot::PlotHeatmap("heat",values1[0],7,7,scale_min,scale_max,"%g",ImPlotPoint(0,0),ImPlotPoint(1,1),hm_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale("##HeatScale",scale_min, scale_max, ImVec2(60,225));
ImGui::SameLine();
const int size = 80;
static double values2[size*size];
srand((unsigned int)(ImGui::GetTime()*1000000));
for (int i = 0; i < size*size; ++i)
values2[i] = RandomRange(0.0,1.0);
if (ImPlot::BeginPlot("##Heatmap2",ImVec2(225,225))) {
ImPlot::SetupAxes(nullptr, nullptr, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(-1,1,-1,1);
ImPlot::PlotHeatmap("heat1",values2,size,size,0,1,nullptr);
ImPlot::PlotHeatmap("heat2",values2,size,size,0,1,nullptr, ImPlotPoint(-1,-1), ImPlotPoint(0,0));
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_Histogram() {
static ImPlotHistogramFlags hist_flags = ImPlotHistogramFlags_Density;
static int bins = 50;
static double mu = 5;
static double sigma = 2;
ImGui::SetNextItemWidth(200);
if (ImGui::RadioButton("Sqrt",bins==ImPlotBin_Sqrt)) { bins = ImPlotBin_Sqrt; } ImGui::SameLine();
if (ImGui::RadioButton("Sturges",bins==ImPlotBin_Sturges)) { bins = ImPlotBin_Sturges; } ImGui::SameLine();
if (ImGui::RadioButton("Rice",bins==ImPlotBin_Rice)) { bins = ImPlotBin_Rice; } ImGui::SameLine();
if (ImGui::RadioButton("Scott",bins==ImPlotBin_Scott)) { bins = ImPlotBin_Scott; } ImGui::SameLine();
if (ImGui::RadioButton("N Bins",bins>=0)) { bins = 50; }
if (bins>=0) {
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::SliderInt("##Bins", &bins, 1, 100);
}
ImGui::CheckboxFlags("Horizontal", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Horizontal);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
ImGui::SameLine();
ImGui::CheckboxFlags("Cumulative", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Cumulative);
static bool range = false;
ImGui::Checkbox("Range", &range);
static float rmin = -3;
static float rmax = 13;
if (range) {
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::DragFloat2("##Range",&rmin,0.1f,-3,13);
ImGui::SameLine();
ImGui::CheckboxFlags("Exclude Outliers", (unsigned int*)&hist_flags, ImPlotHistogramFlags_NoOutliers);
}
static NormalDistribution<10000> dist(mu, sigma);
static double x[100];
static double y[100];
if (hist_flags & ImPlotHistogramFlags_Density) {
for (int i = 0; i < 100; ++i) {
x[i] = -3 + 16 * (double)i/99.0;
y[i] = exp( - (x[i]-mu)*(x[i]-mu) / (2*sigma*sigma)) / (sigma * sqrt(2*3.141592653589793238));
}
if (hist_flags & ImPlotHistogramFlags_Cumulative) {
for (int i = 1; i < 100; ++i)
y[i] += y[i-1];
for (int i = 0; i < 100; ++i)
y[i] /= y[99];
}
}
if (ImPlot::BeginPlot("##Histograms")) {
ImPlot::SetupAxes(nullptr,nullptr,ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL,0.5f);
ImPlot::PlotHistogram("Empirical", dist.Data, 10000, bins, 1.0, range ? ImPlotRange(rmin,rmax) : ImPlotRange(), hist_flags);
if ((hist_flags & ImPlotHistogramFlags_Density) && !(hist_flags & ImPlotHistogramFlags_NoOutliers)) {
if (hist_flags & ImPlotHistogramFlags_Horizontal)
ImPlot::PlotLine("Theoretical",y,x,100);
else
ImPlot::PlotLine("Theoretical",x,y,100);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Histogram2D() {
static int count = 50000;
static int xybins[2] = {100,100};
static ImPlotHistogramFlags hist_flags = 0;
ImGui::SliderInt("Count",&count,100,100000);
ImGui::SliderInt2("Bins",xybins,1,500);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
static NormalDistribution<100000> dist1(1, 2);
static NormalDistribution<100000> dist2(1, 1);
double max_count = 0;
ImPlotAxisFlags flags = ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_Foreground;
ImPlot::PushColormap("Hot");
if (ImPlot::BeginPlot("##Hist2D",ImVec2(ImGui::GetContentRegionAvail().x-100-ImGui::GetStyle().ItemSpacing.x,0))) {
ImPlot::SetupAxes(nullptr, nullptr, flags, flags);
ImPlot::SetupAxesLimits(-6,6,-6,6);
max_count = ImPlot::PlotHistogram2D("Hist2D",dist1.Data,dist2.Data,count,xybins[0],xybins[1],ImPlotRect(-6,6,-6,6), hist_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale(hist_flags & ImPlotHistogramFlags_Density ? "Density" : "Count",0,max_count,ImVec2(100,0));
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_DigitalPlots() {
ImGui::BulletText("Digital plots do not respond to Y drag and zoom, so that");
ImGui::Indent();
ImGui::Text("you can drag analog plots over the rising/falling digital edge.");
ImGui::Unindent();
static bool paused = false;
static ScrollingBuffer dataDigital[2];
static ScrollingBuffer dataAnalog[2];
static bool showDigital[2] = {true, false};
static bool showAnalog[2] = {true, false};
char label[32];
ImGui::Checkbox("digital_0", &showDigital[0]); ImGui::SameLine();
ImGui::Checkbox("digital_1", &showDigital[1]); ImGui::SameLine();
ImGui::Checkbox("analog_0", &showAnalog[0]); ImGui::SameLine();
ImGui::Checkbox("analog_1", &showAnalog[1]);
static float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;
//digital signal values
if (showDigital[0])
dataDigital[0].AddPoint(t, sinf(2*t) > 0.45);
if (showDigital[1])
dataDigital[1].AddPoint(t, sinf(2*t) < 0.45);
//Analog signal values
if (showAnalog[0])
dataAnalog[0].AddPoint(t, sinf(2*t));
if (showAnalog[1])
dataAnalog[1].AddPoint(t, cosf(2*t));
}
if (ImPlot::BeginPlot("##Digital")) {
ImPlot::SetupAxisLimits(ImAxis_X1, t - 10.0, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1, -1, 1);
for (int i = 0; i < 2; ++i) {
if (showDigital[i] && dataDigital[i].Data.size() > 0) {
snprintf(label, sizeof(label), "digital_%d", i);
ImPlot::PlotDigital(label, &dataDigital[i].Data[0].x, &dataDigital[i].Data[0].y, dataDigital[i].Data.size(), 0, dataDigital[i].Offset, 2 * sizeof(float));
}
}
for (int i = 0; i < 2; ++i) {
if (showAnalog[i]) {
snprintf(label, sizeof(label), "analog_%d", i);
if (dataAnalog[i].Data.size() > 0)
ImPlot::PlotLine(label, &dataAnalog[i].Data[0].x, &dataAnalog[i].Data[0].y, dataAnalog[i].Data.size(), 0, dataAnalog[i].Offset, 2 * sizeof(float));
}
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Images() {
ImGui::BulletText("Below we are displaying the font texture, which is the only texture we have\naccess to in this demo.");
ImGui::BulletText("Use the 'ImTextureID' type as storage to pass pointers or identifiers to your\nown texture data.");
ImGui::BulletText("See ImGui Wiki page 'Image Loading and Displaying Examples'.");
static ImVec2 bmin(0,0);
static ImVec2 bmax(1,1);
static ImVec2 uv0(0,0);
static ImVec2 uv1(1,1);
static ImVec4 tint(1,1,1,1);
ImGui::SliderFloat2("Min", &bmin.x, -2, 2, "%.1f");
ImGui::SliderFloat2("Max", &bmax.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV0", &uv0.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV1", &uv1.x, -2, 2, "%.1f");
ImGui::ColorEdit4("Tint",&tint.x);
if (ImPlot::BeginPlot("##image")) {
ImPlot::PlotImage("my image",ImGui::GetIO().Fonts->TexID, bmin, bmax, uv0, uv1, tint);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_RealtimePlots() {
ImGui::BulletText("Move your mouse to change the data!");
ImGui::BulletText("This example assumes 60 FPS. Higher FPS requires larger buffer size.");
static ScrollingBuffer sdata1, sdata2;
static RollingBuffer rdata1, rdata2;
ImVec2 mouse = ImGui::GetMousePos();
static float t = 0;
t += ImGui::GetIO().DeltaTime;
sdata1.AddPoint(t, mouse.x * 0.0005f);
rdata1.AddPoint(t, mouse.x * 0.0005f);
sdata2.AddPoint(t, mouse.y * 0.0005f);
rdata2.AddPoint(t, mouse.y * 0.0005f);
static float history = 10.0f;
ImGui::SliderFloat("History",&history,1,30,"%.1f s");
rdata1.Span = history;
rdata2.Span = history;
static ImPlotAxisFlags flags = ImPlotAxisFlags_NoTickLabels;
if (ImPlot::BeginPlot("##Scrolling", ImVec2(-1,150))) {
ImPlot::SetupAxes(nullptr, nullptr, flags, flags);
ImPlot::SetupAxisLimits(ImAxis_X1,t - history, t, ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL,0.5f);
ImPlot::PlotShaded("Mouse X", &sdata1.Data[0].x, &sdata1.Data[0].y, sdata1.Data.size(), -INFINITY, 0, sdata1.Offset, 2 * sizeof(float));
ImPlot::PlotLine("Mouse Y", &sdata2.Data[0].x, &sdata2.Data[0].y, sdata2.Data.size(), 0, sdata2.Offset, 2*sizeof(float));
ImPlot::EndPlot();
}
if (ImPlot::BeginPlot("##Rolling", ImVec2(-1,150))) {
ImPlot::SetupAxes(nullptr, nullptr, flags, flags);
ImPlot::SetupAxisLimits(ImAxis_X1,0,history, ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1);
ImPlot::PlotLine("Mouse X", &rdata1.Data[0].x, &rdata1.Data[0].y, rdata1.Data.size(), 0, 0, 2 * sizeof(float));
ImPlot::PlotLine("Mouse Y", &rdata2.Data[0].x, &rdata2.Data[0].y, rdata2.Data.size(), 0, 0, 2 * sizeof(float));
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_MarkersAndText() {
static float mk_size = ImPlot::GetStyle().MarkerSize;
static float mk_weight = ImPlot::GetStyle().MarkerWeight;
ImGui::DragFloat("Marker Size",&mk_size,0.1f,2.0f,10.0f,"%.2f px");
ImGui::DragFloat("Marker Weight", &mk_weight,0.05f,0.5f,3.0f,"%.2f px");
if (ImPlot::BeginPlot("##MarkerStyles", ImVec2(-1,0), ImPlotFlags_CanvasOnly)) {
ImPlot::SetupAxes(nullptr, nullptr, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 10, 0, 12);
ImS8 xs[2] = {1,4};
ImS8 ys[2] = {10,11};
// filled markers
for (int m = 0; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, IMPLOT_AUTO_COL, mk_weight);
ImPlot::PlotLine("##Filled", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
xs[0] = 6; xs[1] = 9; ys[0] = 10; ys[1] = 11;
// open markers
for (int m = 0; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, ImVec4(0,0,0,0), mk_weight);
ImPlot::PlotLine("##Open", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
ImPlot::PlotText("Filled Markers", 2.5f, 6.0f);
ImPlot::PlotText("Open Markers", 7.5f, 6.0f);
ImPlot::PushStyleColor(ImPlotCol_InlayText, ImVec4(1,0,1,1));
ImPlot::PlotText("Vertical Text", 5.0f, 6.0f, ImVec2(0,0), ImPlotTextFlags_Vertical);
ImPlot::PopStyleColor();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_NaNValues() {
static bool include_nan = true;
static ImPlotLineFlags flags = 0;
float data1[5] = {0.0f,0.25f,0.5f,0.75f,1.0f};
float data2[5] = {0.0f,0.25f,0.5f,0.75f,1.0f};
if (include_nan)
data1[2] = NAN;
ImGui::Checkbox("Include NaN",&include_nan);
ImGui::SameLine();
ImGui::CheckboxFlags("Skip NaN", (unsigned int*)&flags, ImPlotLineFlags_SkipNaN);
if (ImPlot::BeginPlot("##NaNValues")) {
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::PlotLine("line", data1, data2, 5, flags);
ImPlot::PlotBars("bars", data1, 5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LogScale() {
static double xs[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = i*0.1f;
ys1[i] = sin(xs[i]) + 1;
ys2[i] = log(xs[i]);
ys3[i] = pow(10.0, xs[i]);
}
if (ImPlot::BeginPlot("Log Plot", ImVec2(-1,0))) {
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Log10);
ImPlot::SetupAxesLimits(0.1, 100, 0, 10);
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
ImPlot::PlotLine("f(x) = sin(x)+1", xs, ys1, 1001);